/*
 * Copyright 2011 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package com.google.android.apps.mytracks.services.sensors.ant;

import com.google.android.apps.mytracks.content.Sensor.SensorData;
import com.google.android.apps.mytracks.content.Sensor.SensorDataSet;
import com.google.android.apps.mytracks.content.Sensor.SensorState;

import android.content.Context;
import android.content.SharedPreferences;

/**
 * This sensor handler processes broadcast data messages from ANT HRM sensors.
 *
 * @author Matthew Simmons
 */
class HRMSensorHandler extends AbstractAntSensorHandler {
  public HRMSensorHandler(Context context, SharedPreferences prefs) {
    super(context, prefs);
  }

  @Override
  public AntSensor getSensorType() {
    return AntSensor.SENSOR_HEART_RATE;
  }

  @Override
  public SensorDataSet handleBroadcastData(byte[] antMessage) {
    int bpm = (int) antMessage[8] & 0xFF;
    return SensorDataSet.newBuilder()
        .setHeartRate(SensorData.newBuilder()
            .setValue(bpm)
            .setState(SensorState.SENDING))
        .build();
  }
}
